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ArKTAMIDK

77

further distils, the retort is allowed to cool somewhat, and the
distillate poured bark and redistilled. Kinally it is distilled
from a distilling flask with a thermometer, and collected at
i 30 i.jo . Yield ,|t> grains.

aUl'OCl -h t:n,,eO.ONa   - (CH3.CO)20 4- Nad

/V*yV;Y/>,v Colourless liquid with an irritating1 smell ; h, p.
i.»tf ; ^p- Kr- i'°K M 1 5 ''•

A'rWi //V*//,v Repeat the three experiments described undei
aei'tyl rhloride. The result is the same in each case ; but as
flic* acetic anhydride reacts less readily than aeelyl chloride, the
mixture requires to be wanned.

i.     !l*/() { u-°   2CiL,.(.:oon.

( > -i' ^a I !,-,( * ! I    ( : 1 13.C( ).OCuI I6 + C H,5.CO() I L
-<•) f QI IftNIL- (:aH6NH.CO.CIIn + CH,,

"

In Keatl'jon 2, combination is not <"omplete, even on boiling,
•tnd a little dilute caustic soda must be added to decompose the
unchanged acetic anhydride. In Reaction 3, the product remains
liquid until water is added, when it becomes solid, and on
heatinj.; dissolves, Sec* Afifrndiv^ p. 24,*.

1'KKi'ARA'nON    12.
Acetamide, (:Ils.(X).NII,,
IIt»fni:mn, AVr., 1882, 15, <;8i.
iix> jjrms. ammonium acetate.
Acc'tainide may b<« obtained by simply distilling solid
ammonium acetate from a distilling tlask provided with u thermo-
meter, nsinj* fur a condenser a straight, wide tube. (See Fig. 55.)
A considerable quantity of ammonia, water, and acetic acid